After traveling and touring across the globe for much of the year, A-Trak, who has hit the studio with the likes of Juicy J and Foster the People, and whom has also wonderfully revamped singles by such acts as Martin Solveig and Justice, and has appeared in a Grey Goose ad campaign, is capping off his rather busy 2012 by releasing a new four track set EP entitled “Tuna Melt.” A-Trak, highly regarded as GQ’s “most skillful DJ in the World,” also scored his very own Billboard cover, and now he invites fans to preview an eclectic mix of songs that were helm by a diverse range of producers, which consist of: Beatport chart-topper Tommy Trash, rookies of the year GTA, Swedish super-group Galantis and Fool’s Gold’s own Oliver. If you want to know what to expect—hit the jump and pre-order on iTunes…